Hook



. July 19,1621. 1,636,209

.L BERGs-rl-:N

noox

original Filedqan. 22. 1923 lilium INVENTOR.`

vzes 3D lo/m Bergfm;

A TTORNEYJ.

U drilling rigs.

--umcFig 2\is a front elevationof the hook.

I Patented July 19,1921.

UNITED STATES-f PATENT OFFICE.

JOHN BnaGsTEN, or nnDoNno BEACH, CALIFORNIA, AssrNon, BY xnsNE AssreN- v miN'rs, 'ro STANDARD nAcnINE COMPANY, A conronAnoN or cA'LrronNIA.

HOOK.

Application led January 28, 1923, Serial lo. 814,084. BenewedNovember 5ML-la'.

This invention relates to hooks and has particular reference to that type of a hook 1n which there is a closure for retaining object in the hook so' that they will not acci-l 5 den ally drop or become displaced there;

from..

Although my invention is' applicable to hooks of various sizes and for various uses, Vit is particularly desirable for hooks in well I have in this application set forth m lnvention as applied to, and in a form suited for, hooks of theclass just mentioned, it Ibeing understood that this disclosure is not to be 'considered as limiting the l5 use and application of this invention.

Itis an object of this invention to provide` a hook in which the nose or outer portion is effectively` held 4against being sprung o1'4 pulled'down by the load on the hook.

I t is another object off'this invention to provide a hook of the typel above referred to 1n which the closure operates as atie between the nose portion and shank as ,well as to retain objects in the hook. f

`It is a further object of my invention to provide a-simple, eiective means for holding or retainin the closure in closed position.

A The various objects and featuresof 'my invention lwill' be best' and more fully understood from. the following detailed description of a typical forman'd a plication of the invention throughout which) description reference is had' to the accompanying .drawings in'which bodying `the present invention.

l i Fig. 3 issewctional view of the hook taken in the same direction as Fig. 1 bein a view 40 taken as indicated b, line 3 -3 on F1 1 and Fig. 4 is` a detaile sectional view s owing ,a portion. of-the parts shown in Fig, 3 in another position.

In the drawings the hook embodyng'the present invention is designated as. an en tirety and in one embodiment by A, the'lio'ok being within that classknown as swiveled A hooks; that is to saygth'e'hook` includes the usual hook part proper and a swiveled sup- 5o .upwardly from the hook-proper, a collar 3 rotatably. carriedjouthe stem, a ball 4 piv- .Fig. 1 is a sideselevaaonef a-hook mi porting means or -mounting for the hook part proper. The swiveled support'shown` A1n the drawings includes a stem 1 extemrhng otally carriedon trunnions 6 extending from diametrically opposite sides of the lcollar l3 a nut 10 screw-threaded onthe upper` end of thestem 'to retain the collar thereon and a. suitable thrust b'eaing arrangedbetween thenut and collar. The thrust bearing may comprise bearing rings 7 and 8 arranged f on the stem between the nut and collar and separated by ball bearings 9 or other anti- -friction means. The hook proper may be of the more orless lusual form and construc. tion comprising a load carrying part a shank or. bod part a 'extending .upwardly from one end7 part 50 and an outer part or nose v51 extending from the other end of thepart 50. The parts 50. 51 and a 'are preferably formed integrally and together form a hook shaped structure such,

for instance, as-I have shown throughout the drawings. The stem 1 may be formed with i and as a part of the'shank of thel hook. The construction just described is more or less common to hooks and has no direct relav tion to `the present. invention.

r My present invention provides a closurev b for' the opening of the hook, that is,-to ex tend betweenv the nose portionl and shank a to retain objects in the hook, and means@ for locking or releasably holding the closure b in a closed position. The closure is pivotall connected to one part of the hook and' isV a apted to 'be swung or moved into or out'of positionat the other part of the hook. IlLtheX/drawin I have 'illustrated the clesure as pivotal y/connected to the nose portion ofthe hook and have shown the nose i portion ofthe hook bifurcated at -15 to receive the closure. The closure is pivotally mounted'. in the bifurcation on a pivot pin 13. With the closure b thusv ivotally connected with the nose portion o the hook the Aouter or-'upper portion of the ,closure is adapted to swi into and out of position at the shank. In-

3 of the drawigs'tlie closure is shown in full lines in the clpsed position and is 'shownin dotted lines ma artially open position. An actuating memr or tri ger 16 isprovided in association with the closure to be engagedby an object being arranged in the hook to cause lswmging orv actuating of the closure to the closed position. The trigger 16 may be in the form of an arm or projection on the closure adaptedtoset in'arecesaQOinthe-load carrymg art 50. of the hook when the closure is in r t e closed position and to extend'or project into the open portion of the ho'ok when the closure is open. 'When the trigger is held in or to the loadcarrying part 50 by an object in the. hook the closure is of course, held closed. T he -trigger is rigid, vpreferably integral, with the closure so thatthe two workl together. The trigger is, of course, preferably shaped and finished so that 1t sets firmly in the .recess 20l provided inthe load carrying part 50 and thus virtually forms or vacts as a part of the loadcarrying partv 5Q.

l Wit-h the particular form and relationing of lparts shown in the drawings the outer or upper end of the closure b extends to or is at the upper end portion of the shank a when in the closed positionu The hook is further so shaped and proportioned that the upper end portion of the shank@ is directly abovethe load carryingportion I and the closure b is in a substantially vertical position when closed. The desirability of thls positioning of the closure will be apparent from the des /cription'to follow. My present invention provides inte'rengaging means between ythe outer part'of the closure and the shank a so that the closure and shank are connected, when the closure is in closed position, so that load or strain is transmitted between them. In the form ofthe invention herein set forth the interengagmg means comprises a lugor projection 18y on one of the parts, for insta-nce, the shank a and a cooperating head .11 on the outer end ofthe closure b. The head 11 is in the form of an enlargement on the outer end of the closure having an opening 19 adapted tol receive the'projection 18. The projection and head are so proportioned and related that the projection is received in the opening of the head when the closurev is in the closed position and is such that the outer part of -the closureis connected with the shank sothat the closure forms a tie between the shank and nose of thel hook. In other words the closure extends between the nose portion and shank in a manner to oper! ate-under tension tov resist any stress or 1 tiorr/ coo erates' witf accordance with the broader aspects of m movement tending to bend or open out *be invention may include a part 21 carried by the hook proper, for instance,. at the upper end of the shank portion of the hook to be V`moved into andA out of position Where it operatesto retain thev closure in the closed posltion where ,the head of the closure `is in cooperative engagement with the projection v18. the particular-form of theinygention lulu illustrated in the drawings the part 21 is connected with the hook proper to reciprocate into and out of engagement with the head 1l of the closure. l in the form of a sleeve having a portion 22 slidably carried on'the stem, 1 and a flange portion 24 slidably fitting over the upper end portion o f the shank a. The portion 24 vis the portion of the part 21 which engages and holds the head of the closure. The invention provides means for lnormally yieldingly holding the part 21 in position with the part 24 thereof engaging the closure to hold it in the closed position. This means may comprise a spring 23, 'for instance, a helical spring 23 carried on the stem between the collar 3 of the swivel support and the part 21 in the manner clearly shown throughout the drawings. In the particular form of construction illustrated in the drawings the portion 24 of the part 21 is cut away at 25 to receive a part of the shank a, which might otherwise interfere with the operation of the part 21. With the constructin just described the part 21 is normally yieldingly held in a down position where the portion 24 extends over and holds the head 11- of the closure in cooperative engagement on the shank. l/Vhen it is desired to release the closure the part 21 must be slid or moved u p- Wardly against the resistance of. the spring 23 until the portion 24 passes above the head 11. to free it. Upon releasement of the part y21v the spring 23 tends to immediately-return it to a down position. It may be noted at this point that the part 21 in extending The part 2l is shown completely around the u per end portion of the shank is engageable rom any side of the hook when it is desirable to release the closure.

My present invention further provides what 'I will term an ejector or ejecting means,which operates to hold the up while the closure-is open and to eject the closure lfrom the'body when the holding means' is released. The ejector operates to start the closure laway from the shank a when the hook is being opened. The ejector art 21y may comprise a spring pressed member or plunger '246 suitably carried by the shank portion of the hook. In the drawings I have shown a plunger 25 comprising 'ah'ed`28 operating y:in an opening 27 in the body and a bolt part 29 projecting from the head 28' through an o eningv30 in the shank to engage the hea 11 of the closure, or extend y under part 21 as shown in Figs. 3 and4 of the ldrawings. A spring 32 is arran ed between. l

the head-28 of the plunger an a plug '31 which closes the outer'end of the o ening 27 to normally yieldin 1y urge the bo t part 29 outwardly. The p unger is so mounted as to Abe in osition Vto be engaged b the outer art o the head 11 when the c osure is in t e closed position and t0 project' under the portion 24 of the part 21 to retain the part `21 up when the closure is open. In operation the bolt 29 forces or follows the head of the closure out, when ,the part 2l is moved upwardly to release the head, so

that it passes under` the portion 24 before the part 21 can be returned to its down position by the spring 23. When the closure is open the bolt remains projected under the portion 24 as shown in Fig. 4 to hold the Apart 21 up. As the closure is swung to the closed position it yengages the end of the vbolt as shown at 33 in Fig. 44 to depress the bolt against the resistance of the spring 27 until the parts reach the position shown in Fig. 3 at which time the part 21 is automatically moved downwardly by the spring 23 to retain the closure'in the closed position. It will be obvious that an object ar-v opened and released to allow the removal of' an object therefrom b Simply moving'fe part 21 upwardly to re ease the closure.

Havingl described only a typical preferred form of my invention I do notl wish to limit myself to the -specific details hereinabove set forth, but wish Vto reserve to myself any changes or variations that may appear to those skilled in the art or fall within the scope of the following claims. l Having described my invention, I claim: 1. In combination, a hook, a closure for the hook, a member carried by the hook to be movable to operative position where it` holds the closure in closed position, and a spring actuated plunger operating to hold the member in an inoperative position when the closure is o en. t

2.'A device lncluding a hook, a closure for the hook, and means for interconnecting the closure and hook when the closure is in operating position, said means comprising a projection on the hook and a head on the closure having an opening through it .to receive the projection.

3. In combination, a hook, a closure for the hook, means for locking the closure in closed position, and spring actuated plunger for ejecting the closure from the closed position upon release of the locking means. In testimony whereof, I have signed my name to this specification.

JOHN BERGSTEN. 

